Installation
May 2008 – Revision 1.3
Page 18 of 62
3M™ Wireless Communication System Model XT-1
Installation Manual
Terminal Label
Definition and Connection Information
MON SKR-
Negative phase monitor speaker
GRT_CNL
Active low talk
BACKUP INTERCOM: All of the wires on this terminal block go to the backup intercom
MIC+
Positive phase microphone
MIC-
Negative
phase
microphone
GND
Microphone wire shielding
MEN SPKR+
Positive phase order point speaker
MEN SPKR-
Negative phase order point speaker
MON SPKR+
Positive phase of monitor speaker
MON SPKR-
Negative phase of monitor speaker
VEH_NO
Vehicle detector (normally open)
VEH_COM
If backup intercom includes external vehicle detector module, use this terminal
GRT CNCL IN
If installation includes external greeter module or timer module and backup
intercom has an active low GRT_CNL output, use this terminal
INTERBASE_1: All wires on this terminal block go to INTERBASE_1 terminals on the interconnected base station
OUT-
negative out (connects to negative in on interconnected base station)
OUT+
Positive out (connects to positive in on interconnected base station)
IN-
Negative in (connects to negative out on interconnected base station)
IN+
Positive in (connects to positive out on interconnected base station)
INTERBASE_2: All wires on this terminal block go to INTERBASE_2 terminals on the interconnected base station
OUT-
negative out (connects to negative in on interconnected base station)
OUT+
Positive out (connects to positive in on interconnected base station)
GND
Ground
IN-
Negative in (connects to negative out on interconnected base station)
IN+
Positive in (connects to positive out on interconnected base station)
GND
Ground
UART_TX
UART (transmit) connects to UART_RX on interconnected base station
UART_RX
UART (receive) connects to UART_TX on interconnected base station
LAN
Network connection (crossover cable to PC or patch cable to network)
PAGE
Active low page
TALK
Active low talk
GND Ground
SPLIT/CROSS
Shorting this pin to GND will switch between Split Lane and Cross Lane modes
ORDER/TAKING
Shorting this pin to GND will move through the order taking modes
DAY/NIGHT
Shorting this pin to GND will switch between day and night modes
EXT_MSG
Shorting this pin to GND will play a selected message (if optional greeter board
is installed)
VEH_APP
Active low vehicle approaching
GND Ground
RELAY1_COM
Relay 1 common